diff --git a/conf.yaml b/conf.yaml
index 0e881f80882f9..0addf0cceb9af 100644
--- a/conf.yaml
+++ b/conf.yaml
@@ -530,9 +530,9 @@ contents:
                 sections:
                   - title:      APM Android Agent
                     prefix:     android
-                    current:    0.x
-                    branches:   [ 0.x ]
-                    live:       [ 0.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 0.x } ]
+                    live:       [ do-not-delete_legacy-docs ]
                     index:      docs/index.asciidoc
                     tags:       APM Android Agent/Reference
                     subject:    APM
@@ -546,9 +546,9 @@ contents:
                         path:   CHANGELOG.asciidoc
                   - title:      APM Go Agent
                     prefix:     go
-                    current:    2.x
-                    branches:   [ 2.x, 1.x, 0.5 ]
-                    live:       [ 2.x, 1.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 2.x }, 1.x, 0.5 ]
+                    live:       [ do-not-delete_legacy-docs, 1.x ]
                     index:      docs/index.asciidoc
                     tags:       APM Go Agent/Reference
                     subject:    APM
@@ -563,9 +563,9 @@ contents:
                         exclude_branches:   [ 0.5 ]
                   - title: APM iOS Agent
                     prefix: swift
-                    current: 1.x
-                    branches: [ 1.x, 0.x ]
-                    live: [ 1.x ]
+                    current: do-not-delete_legacy-docs
+                    branches: [ { do-not-delete_legacy-docs: 1.x }, 0.x ]
+                    live: [ do-not-delete_legacy-docs ]
                     index: docs/index.asciidoc
                     tags: APM iOS Agent/Reference
                     subject: APM
@@ -579,9 +579,9 @@ contents:
                         path: CHANGELOG.asciidoc
                   - title:      APM Java Agent
                     prefix:     java
-                    current:    1.x
-                    branches:   [ 1.x, 0.7, 0.6 ]
-                    live:       [ 1.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 1.x }, 0.7, 0.6 ]
+                    live:       [ do-not-delete_legacy-docs ]
                     index:      docs/index.asciidoc
                     tags:       APM Java Agent/Reference
                     subject:    APM
@@ -602,9 +602,9 @@ contents:
                           1.x:  do-not-delete_legacy-docs
                   - title:      APM .NET Agent
                     prefix:     dotnet
-                    current:    1.x
-                    branches:   [ 1.x, 1.8 ]
-                    live:       [ 1.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 1.x }, 1.8 ]
+                    live:       [ do-not-delete_legacy-docs ]
                     index:      docs/index.asciidoc
                     tags:       APM .NET Agent/Reference
                     subject:    APM
@@ -618,9 +618,9 @@ contents:
                         path:   CHANGELOG.asciidoc
                   - title:      APM Node.js Agent
                     prefix:     nodejs
-                    current:    4.x
-                    branches:   [ 4.x, 3.x, 2.x, 1.x ]
-                    live:       [ 4.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 4.x }, 3.x, 2.x, 1.x ]
+                    live:       [ do-not-delete_legacy-docs ]
                     index:      docs/index.asciidoc
                     tags:       APM Node.js Agent/Reference
                     subject:    APM
@@ -642,9 +642,9 @@ contents:
                           4.x:  do-not-delete_legacy-docs
                   - title:      APM PHP Agent
                     prefix:     php
-                    current:    1.x
-                    branches:   [ 1.x ]
-                    live:       [ 1.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 1.x } ]
+                    live:       [ do-not-delete_legacy-docs ]
                     index:      docs/index.asciidoc
                     tags:       APM PHP Agent/Reference
                     subject:    APM
@@ -658,9 +658,9 @@ contents:
                         path:   CHANGELOG.asciidoc
                   - title:      APM Python Agent
                     prefix:     python
-                    current:    6.x
-                    branches:   [ 6.x, 5.x, 4.x, 3.x, 2.x, 1.x ]
-                    live:       [ 6.x, 5.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 6.x }, 5.x, 4.x, 3.x, 2.x, 1.x ]
+                    live:       [ do-not-delete_legacy-docs, 5.x ]
                     index:      docs/index.asciidoc
                     tags:       APM Python Agent/Reference
                     subject:    APM
@@ -681,9 +681,9 @@ contents:
                           6.x:  do-not-delete_legacy-docs
                   - title:      APM Ruby Agent
                     prefix:     ruby
-                    current:    4.x
-                    branches:   [ 4.x, 3.x, 2.x, 1.x ]
-                    live:       [ 4.x ]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 4.x }, 3.x, 2.x, 1.x ]
+                    live:       [ do-not-delete_legacy-docs ]
                     index:      docs/index.asciidoc
                     tags:       APM Ruby Agent/Reference
                     subject:    APM
@@ -698,9 +698,9 @@ contents:
                         exclude_branches:   [ 1.x, 0.x ]
                   - title:      APM Real User Monitoring JavaScript Agent
                     prefix:     rum-js
-                    current:    5.x
-                    branches:   [ 5.x, 4.x, 3.x, 2.x, 1.x, 0.x ]
-                    live:       [ 5.x, 4.x]
+                    current:    do-not-delete_legacy-docs
+                    branches:   [ { do-not-delete_legacy-docs: 5.x }, 4.x, 3.x, 2.x, 1.x, 0.x ]
+                    live:       [ do-not-delete_legacy-docs, 4.x]
                     index:      docs/index.asciidoc
                     tags:       APM Real User Monitoring JavaScript Agent/Reference
                     subject:    APM